@misc{10481/72106,
year = {2017},
month = {2},
url = {http://hdl.handle.net/10481/72106},
abstract = {This work uses seismic records to document and classify contourite features around the
Iberian continental margin to determine their implications for depositional systems and
petroleum exploration. Contourites include depositional features (separated, sheeted,
plastered and confined drifts), erosional features (abraded surfaces, channels, furrows and
moats) and mixed features (contourite terraces). Drifts generally show high to moderate
amplitude reflectors, which are cyclically intercalated with transparent layers. Transparent
layers may represent finer grained deposits, which can serve as seal rocks. High amplitude
reflectors (HARs) likely represent sandier layers, which could form hydrocarbon reservoirs.
HARs occur on erosive features (moats and channels) and are clearly developed on
contourite terraces and overflow features. Most of the contourite features described here are
influenced by Mediterranean water masses throughout their Pliocene and Quaternary
history. They specifically record Mediterranean Outflow Water following its exit through the
Gibraltar Strait. This work gives a detailed report on the variation of modern contourite
deposits, which can help inform ancient contourite reservoir interpretation. Further research
correlating 2D and 3D seismic anomalies with core and well logging data is needed to
develop better diagnostic criteria for contourites. This can help clarify the role of contourites
in petroleum systems.},
organization = {IGCP-619	
INQUA-1204	
CTM 2008-06399-C04/MAR	
CGL2011-16057-E	
CTM 2012-39599-C03	
CGL2016-80445R	
FCT-PTDC/GEO-GEO/4430/2012	
CTM2016-75129-C3-1-R	
CGL201574216-JIN},
publisher = {Geological Society},
keywords = {Sandy contourites},
keywords = {High amplitude reflectors (HARs)},
keywords = {Water mass-seafloor interaction},
keywords = {Hydrocarbon exploration},
keywords = {Iberian continental margin},
title = {Contourites along the Iberian continental margins: conceptual and economic implications},
author = {Llave, Estefanía and García, Marga},
}